[NFC][lit] Use proper semantic versioning names for variables

The variable named `minor` was actually pointing to the patch part of
the version. While I was changing this I also made the check for Apple
clang more robust by checking both patch and minor rather than just
minor.

llvm-svn: 319656

llvm/utils/lit/lit/llvm/config.py

@@ -225,9 +225,10 @@ class LLVMConfig(object):
         if re.match(r'^x86_64.*-apple', triple):
             version_regex = re.search(r'version ([0-9]+)\.([0-9]+).([0-9]+)', version_string)
             major_version_number = int(version_regex.group(1))
-            minor_version_number = int(version_regex.group(3))
+            minor_version_number = int(version_regex.group(2))
+            patch_version_number = int(version_regex.group(3))
             if 'Apple LLVM' in version_string:
-                return major_version_number >= 9 and minor_version_number > 0
+                return major_version_number >= 9 and (minor_version_number > 0 or patch_version_number > 0)
             else:
                 return major_version_number >= 5